51327973 has 8 divisors (see below), whose sum is σ = 53647488. Its totient is φ = 49015824.

The previous prime is 51327961. The next prime is 51327989. The reversal of 51327973 is 37972315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51327973 - 2¹³ = 51319781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51327953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16336 + ... + 19222.

It is an arithmetic number, because the mean of its divisors is an integer number (6705936).

Almost surely, 2^51327973 is an apocalyptic number.

It is an amenable number.

51327973 is a deficient number, since it is larger than the sum of its proper divisors (2319515).

51327973 is a wasteful number, since it uses less digits than its factorization.

51327973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683.

The product of its digits is 39690, while the sum is 37.

The square root of 51327973 is about 7164.3543323875. The cubic root of 51327973 is about 371.6362232723.

The spelling of 51327973 in words is "fifty-one million, three hundred twenty-seven thousand, nine hundred seventy-three".